Unloader for washed cans and covers



ay E. R, ALLING 2,041,451

U'NLOADER FOR WASHED CANS AND COVERS Filed March 15, l934 6 Sheets-Sheet1 .E. R01 Hume y May 19, 1936. E. R. ALLING UNLOADER FOR WASHED CANS ANDCOVERS Filed March 15, 1934 6 Sheets-Sheet 2 I/vvEA/Tan E, Roy A LL! NGy May 19, 1936. E. R. ALLING 2,041,451

I UNLOADER FOR WASHED CANS AND COVERS Filed March 15, 1934 6Sheets-Sheet 3 fNvENTolf I; Row A LL! N 6 y 1935- E. R. ALLING 2,041,451

UNLOADER FOR WASHED CANS AND COVERS Filed March is, 1954 e Sheets-Sheet4 INENTOH B. Row LUNG 0 r Tali/v5 y May 19, 1936. E. R. ALLING UNLOADERFOR WASHED CANS AND COVERS Filed March 15, 1954 e Sheets-Sheet 5ZNVENTOR E. Roy ALL! N 6 9 rromvEr May 19, 1936.

E. R. ALLING UNLOADER FOR WASHED GANS AND COVERS e Sheets-Sheet 6 FiledMarch 15, 1954 .Z'NVE TaR E. ROY ALL] N G y I l v flrraimgy Patented May19, 1936 UNITED STATES PATENT OFFICE COVERS I a. no 'alnng, Kenmore, N.Y. Application March 15, 1934, Serial No. 715,669.

27 Claims. (01. 29-84) My device relates in general to unloading devicesand in particular to means for inverting milk cans or other utensilsfrom a mouth-down position as they come from the washing machine to amouth-up position.

It is well known to, those skilled in the art, that in unloading devicesof the present day, the motion of the.cans is intermittent and jerky,and results in considerable noise and slight but persistent damage tothe cans and covers thereof.. This is particularly true where cans areinverted by gravity by being allowed to tilt or fall sidewise and strikeagainst an obstacle in such a manner that their movement and the forceof gravity carry them to an inverted position or when the cans areallowed to fall into a reversing means.

I It has been an object of'm'y invention to *overcome all the abovementioned disadvantages, and to provide a device whereby the cans willbe inverted with a smooth, harmonious motion and in which the coverswill be quietly placed upon the-cans and then seated within the mouth ofthe can by means of momentary, shockless pressure.

Another object has been to provide a. cradle and associated meanswhereby the can may be quietly taken from the tracks of the washingmachine and turned right side up in a smooth, steady and even mannerwith an almost entire absence of noise, vibration and shock.

- Another object has been to provide such a device by which cans ofvarious heights and di-= ameters may be handled without any manualadjustment.

Moreover, my device, is of such a nature, that any drops of waterhanging between the reversing means and the can mouth shall be allowedto drip away from the lip of the can before the can has reached itsupright position.

Furthermore, by means of my device; covers may be assembled upon thecans and pressed-into the mouths thereof.

The above objects and advantages have been accomplished by the deviceshown in the accompanying drawings, of which:

Fig. 1 is a fragmentary, sectional side elevatien of my device.

Fig. 2 is a fragmentary, sectional, .plan view thereof.

Fig. '3 is a fragmentary, plan view of a portion ofthe cover feedingmechanism.

Figs. 4 to 7, inclusive, show a milk can in various positions andfragmentary portions of the mechanism for inverting it from a mouth-downto a mouth-up position.

Fig. 8 is a fragmentary view of themechanism for discharging theuprighted can from the device.

, Figs. 9 and 10 are front elevations of the cover feeding mechanism,shown in two of its positions. Fig. 11 is a fragmentary, sectional, sideelevation of the cover feeding mechanism.

Fig. 12 is an enlarged,-detailed view of the cover hopper.

Fig. 13 is an enlarged, fragmentary, detailed view of a. portion of thecover ejector.

Fig. 14 is an enlarged, fragmentary, plan view of the cams for actuatingmy device.

Fig. 15 is an enlarged, fragmentary, side elevation showing some ofthe'cams, and is taken the cams,

position and which must be inverted to its mouth-up position afterleaving the washing ma.- chine, and in the drawings I have shown adevice especially adapted for the handling of milk cans and the coversthereof.

My device is arranged at the discharge endof the can washing machinewith which it is to be used, and it is so connected with the can and.cover feeding mechanism of such washing machine that the movements ofthe device are timed with the movements of the can washer. My devicecomprises in general a tilting table it arranged at the discharge end ofthe can washer; a constantly revolving cradle 2|; a pusher 22; a canlowering shelf 23 discharge levers 24; cover'handling mechanism 25; anda cover. presser 26.

lfliese various parts of my device are operated in timed relation witheach other by means o1 suitable cams to be hereinafter specifically described. These cams are mounted upon a cam shaft 30 which is mounted insuitable bearings 3! carried by the frame 32 of the device. The camshaft 30 is preferably driven-by a spur gear 33 which is rigidly mountedupon the shaft 30 and side rails 31 andtracks 38 thereof. The tiltingtable is provided with side flanges 39 which keep the can centrallythereupon. The tilting table is intermittently operated each time a canis pushed thereon. A table arm 40 is pivotally carried at anintermediate portion by a bracket 4| secured to the base 42 of themachine. The end 43 of this arm is pivotally connected to the table 20by means of a link 4. The opposite end 45 of the arm carries'a roller 46which engages a table cam 41. This cam is carried by the main cam shaft30 and is provided with an annular portion 48 which keeps the tablenormally in its elevated position, or in a position where its topsurface lies in a plane substantially parallel with the tracks 38 of thewasher. The cam is also provided with a flattened surface 49 whichpermits this table to be gradually lowered and raised and heldmomentarily in its tilted position, as shown in Fig. 5.

The cans are intermittently fed through the washing machine by means ofdog bars 50 having dogs 5| which serve to push the cans forwardly as thedog bars are reciprocated in a feeding direction and which are depressedby engagement with the can lip and, therefore, moved out of the way asthe dog bars are returning to the starting positions. These dog bars anddogs do not form any part of my invention since they are a part of thewashing machine. It is, however, necessary that these bars be operatedin timed relation with the other mechanisms of my device, and,therefore, they are reciprocated by a suitable cam 52 mounted upon thecam shaft 30. This cam is preferably of the internal grooved type and itis engaged by a roller 53 carried by a reciprocating slotted arm 54. Therear end 55 of this arm is slidably carried in a bracket 56 secured tothe platform '51 of the machine and the slot 58 thereof straddles thecam shaft 30, being, however, wider than the diameter of the cam shaftso that some up and down movement of the end 59 of the lever may occur.The end.59 is pivotally secured to a rocker arm 60, the lower end ofwhich is pivotally secured to a bracket 6i carried by the base 42 of themachine. The upper end of the rocker arm 60 has attached thereto auniversal joint 52 which is carried at the rear end of a connecting link63. The opposite end of the link 53 is attached to an operating arm 64.This arm is secured to a vertically arranged feed bar shaft 65, which ispivotally carried preferably on the outside of the machine in bearingbrackets 65. A connecting link 61 connects the extreme inner end of thearm 84 with a bracket 68 carried by one of the dog bars. The dog barsare connected together by suitable means so that they will operate inunison. The dog bar cam 52 is so timed in relation to the tilting tablecam that the table will begin to tilt after a can has been fed thereonby the operation of the dog bar cam 52.

The cradle 2| of my deviceis mounted upon a cradle shaft 10. This shaftis mounted in suitable bearings -69 and it is preferably arranged aboveand in the same vertical plane as the cam shaft 30. It is connected tothe cam shaft by means of sprocket wheels H and 12 and a sprocket chain13. The sprocket wheels each have preferably the same number of teethand. therefore, the shafts are rotated at the same rate of speed. Thecradle comprises two side arms 15 which are formed with upper canengaging portions 16 and lower can engaging portions 11. At the outerend of each upper can engagin portion is provided a finger 18 whichengages the lip 19 of the can and lifts it from the tilting table 20. Adetent is carried by each of the fingers 18 which holds the can in fixedposition upon the fingers while the cradle is being rotated to andslightly beyond its horizontal position. The upper can engaging portions16 of the cradle are cut away, as clearly shown, so as to givesufficient clearance between 5 the can and cradle and provide for thehandles (not shown) of the can. The lower can engaging portions 11 ofthe cradle arms are straight and so arranged that they engage the body82 of the can and since these arms are separated, they 10 hold the canin its position during the major portion of its movement. At the outerends of each of these portions of the arms are arranged a suitable stop83. The distance between the fingers 18 and the stops 83 is slightlygreater than the 15 height of the maximum sized can to be handled in thedevice, and the fingers 18 support the can and prevent its axialmovement from the time it is lifted from the tilting table 20 until thecan reaches a point slightly beyond the horizontal position. As thecradle continues to rotate, the

Y can will be slid endwise when the frictional engagement of its sidewalls with the cradle has been overcome and it will then move endwiseuntil the bottom rim thereof engages with the stops 83. These stops willprevent further axial movement until the can has been removed from thecradle. The tilting table is provided in its forward edge with slots 85and the table is so positioned with relation to the ends of .the cradlethat such ends will pass through such slots when the cradle is rotating.Thetilting table is so timed in relation to the upper can engagingportions 16 of the cradle arms 15 that the fingers 18 carried by thesearms will be disposed in the 35 slots 85 of the tilting table andsubstantially on a line with the surface of such table when the tablehas reached its maximum lower position,

whereby the can is lifted from the table by an even movement withoutjerk or undue noise. 40

The pusher 22 of my device is arranged to oscillate between the arms 15of the cradle and it is carried by a sleeve 88 which is pivotallymounted upon a shaft 86. This shaft is suitably carried by bearings 81secured to the under side of the platform 51 of the device. The pusheris secured to one end of the sleeve 88 and a pusher cam arm 89 issecured to the other end thereof. The outer end of this arm engages withthe pusher cam 90. This cam is carried by the cam 50 shaft 30 and is sodesigned that it gives considerable movement to the upper end of thepusher 22 which serves to push the can out of the cradle and onto thecan lowering shelf 23. The upper end of the pusher is provided with 65side arms 9| which are curved in shape so as to guide in onto thelowering shelf 23 and prevent lateral movement. The pusher cam 90 is sotimed in relation to the rotation of the cradle that when the stops 83of the cradle are approaching the level of the platform 51 (see Fig. 6),the pusher will start to tip the can forwardly toward an uprightposition and as the stops 83 reach substantially a position where theyare level with the platform 51, the pusher will have 65 lever 90 isrigidly carried by the shaft 80 and a shelf cam arm-91 is also rigidlysecured to the shaft 86 and has its outer end engaging with a tiltingshelf cam 98. This shelf cam 98 is so designed and timed in relation tothe pusher cam 90 and the cradle that the shelf will be elevated to theposition shown in Fig. 7 as the pusher moves. the can out of the cradleand onto the shelf. pusher continues to move the can rearwardly alongthe shelf 23 and platform 51 until the position shown inFig. 1 isreached, after which the pusher will bewithdrawn to its inner position,as shown in Fig. 6. During this period of operation the can loweringshelf will be gradually lowered until it is on a line with the platform51 and the can will come to rest upon this platform where it will beready to be discharged therefrom.

The cans after having been lowered onto the platform are dischargedtherefrom by means of two discharge levers 24. These levers are rigidlysecured to a discharge lever shaft I00. This shaft is mounted insuitable bearing brackets I08 carried by the base 02 of the machine.These arms extend upwardly toward the platform 51! and the upper endsI02 thereof are immediately below the platform. A discharge dog I03 ispivotally carried by the upper end I02 of each of these levers, andthese dogs project upwardly through the slots 93 formed in the platform.A stop 50 5 is located on the rear side of each of the levers so thatthe dogs will be prevented from rotating in a clockwise direction abouttheir pivots but will be permitted to rotate in a counterclockwisedirection. As shown in Fig. 8, the levers are in position to force thecan from the full line position to the .dotted line position and duringthis movement the dogs which engage the can will be prevented fromrotating. However, when the can has reached the dotted line position andthe levers are returned to the fragmentary dotted line position of thisfigure, the dogs will be rotated and will be dragged across the bottomof the next succeeding can which has been lowered onto the platform bythe can lowering shelf. The maximum forward movement of the arms asshown by the fragmentary dotted line position is such that the dogs willbe behind the next succeeding can and when the arms are again movedrearwardly to feed another can, the dogs will be permitted, by theweight of their lower ends, to again assume their operating positions,as shown by the full line position. The discharge levers are oscillatedback and forth by a discharge lever cam I06 which is rigidly mountedupon the cam shaft30 and which is of the grooved type. A lever cam armI01 having its lower end pivoted to a bracket I08, arranged at the baseof the machine, is connected at its upper end by means of a link I09 toan operating arm I05 carried by the shaft I00. The leverarm I01 carriesa roller' H which engages with the groove of the cam I06. The cam is sodesigned as to produce a substantially uniform backward and forwardoscillatory motion to the discharge levers 2 and it is so formed thatthe levers will pick up and feed the can rearwardly from the position towhich it has been moved by the pusher. In Fig. 8 the cam and dischargelevers are shown in two positions, an additional fragmentary view of theupper end of the levers being also shown. In the full line positionshown, the cam is foreing the levers rearwardly so as to engage the can'which has been pushed to the position shown by the pusher 22 and theextreme forward movement As the cradle continues to rotate, the

of the levers is shown by the full dotted line p0 sition.

Referring now more particularly to Figs. 1 to 3 and 9 to 13, inclusive,where I show details of the cover handling mechanism, II are stand- .5ards secured to the platform 51 of the machine and pivotally carrying attheir upper ends the cover hopper II 6. This hopper is mounted upontrunnions II I (see Fig. 12) which are rotatably carried in suitablebearings. This hopper is U- shaped and is provided with vertical slotsH8 formed in its two opposite walls for the reception of the upper endsI 39 of the cover ejector arms II9. One end of the hopper is open andthis end is arranged adjacent the cover guide 15 or chute II4. Thecovers are fed to this guide or chute, which is inclined, by means ofthe cover feeding mechanism I of the can and cover washing machine. Thismechanism comprises a stationary bar I2I which is provided 20 withindentations I22 for centralizing and spacing the covers as they arebeing fed, and a dog feed bar I23 is also provided for feeding thecovers in periodic manner along the stationary rack. This feed bar has aplurality of feed 25 dogs I24 which push the can covers from one recessI2 2 to another on their rearward movement. These dogs are pivoted sothat they will ride under the covers on their return movement. This feedbar is actuated by a cover feed dog arm I 25 and by a link libconnecting the outer end of this arm with a bracket i2? carried by thefeed bar. The arm I25 is mounted on the vertical feed bar shaft 65 andis operated in unison with the can feed bars to so that each time a canis fed from the washer a corresponding cover will also be fed therefrom.When a cover has reached the position of the forward cover in Fig. 1, itwill roll down the guide or chute H6 and into the hopper lit.

sprocket I30 and a counterweight I 32is attached I to theu'pper end, andthe lower end of the chain extends downwardly through the platform 5?where it is connected to a fulcrum arm I33. This fulcrum arm is pivotedat I 34 to a suitable bracket carried by the frame of the machine and atits inner end it is provided with a roller Hi5. This roller isengageable' with a cover hopper cam I3b. This cam is mounted upon thecam shaft 3% and, therefore, operates in unison with the other mechanismhereinbefore described. This cam has a cylindrical surface. I3?concentric with the axis of the shaft 39. Thissurface is so proportionedthat the hopper is kept in its normal vertical position during acomplete cycle of the machine except for the time when a can isimmediately in front of the hopper and before being discharged from theplatform 57, at which time the depressed surface I38 permits the weightI 32 to draw the hopper down to the position shown in Fig. I0, afterwhich it is immediately raised again to its normal vertical positionshown in Fig. 9 where it is kept until per H6 is the cover ejector 128,the upperends I39 of whose arms H9, hereinbeforedescribed, pass throughthe slots II8 of the hopper. These arms are connected together at thebottom by means of a web I40 and they are pivoted at their lower ends bybeing mounted upon a shaft MI. This shaft is suitably journaled in thestandards II5. An arm I42 is secured to the hub I43 of the ejector andthe outer end of this arm provides a circular bearing I for connectingpin I45. The pin is rotatably mounted in the bearing I44 and has anaperture I46 formed in its projecting end for reception of the bent endI41 of a connecting rod I48 (see Fig. 13). The lower end of theconnecting rod is connected to the rearward end of a fulcrum lever i 59.The opposite end of the fulcrum lever is engageable with the coverejector cam i5ii. This cam is mounted on the cam shaft 353 and is formedwith a perimeter which is for the most part concentric with the axis ofthe shaft and with a raised portion ifii. This raised portion gives arather quick movement to the ejector whereby the cover is quickly pushedout of the cover hopper I I6. A weight I28 is attachedto the fulcrumlever I49 so as to normally maintain the ejector H9 in its inoperativeposition. This cam is so timed that it starts to operate as the coverhopper is being lowered to the position shown in Fig. 10 and in whichposition it is shown as having traveled the maximum distance and ashaving pushed the cover over into the mouth of the can. When the lip ofthe cover rests upon the h pper, as shown in Fig. 10, the reversemovement of the hopper to its normal position will lift the coverslightly, thus releasing the hopper whereupon the cover will again fallback into the mouth of the can.

It is not sufficient that the cover be merely placed on top of the canand in registration with the mouth, but in order to properly close thecan and make it suitable for transportation, it is necessary that thecover be forced tightly into the opening of the mouth of the can. Thisis accomplished by the cover presser 26. This presser comprises arelatively long arm I55 which is pivoted at it forward end to the rearedge of the can washer and at such an elevation that it will reach allthe cans within the range of the machine. It is provided at its rear endwith a presser block I56 made preferably of wood or other suitablematerial so that the top of the cover will not be damaged. The arm is ofsuch length that the presser block will come-in the center of the coverwhen in the position wherethe cover has been placed thereupon by thecover hopper andcover ejector and before it is moved rearwardly off ofthe platform. This arm is actuated by a. presser cam I51 which ismounted upon the cradle shaft, I0. The cam is connected to the presserarm by means of a slotted link I58 which is pivotally attached at itsupper end to a bracket I59 carried by the arm. The slotted link isprovided at a pointsubstantially at its center with a roller I50 and isslotted at its lower end and disposed about the cradle shaft 10. Thisconnection permits the link to float and to oscillate slightly as thearm is moved vertically. The rollerIGO is arranged on top of the cam orthe side tion'at all times except for an instant immedi-.

ately following the placing of the can cover within the mouth of thecan. A depression IGI, having steeply inclined sides, is provided forpermitting the presser arm to be lowered at this time. As shown in Fig.1, the presser is in its operative position and has pressed the coveronto the can. The roller I60 is so arranged with respect to theperimeter of the cam that for the maximum sized cans and the mediumsized cans the roller will not reach the bottom of the depression forthese cans. This is done for the reason that the presser must havesufiicient movement to enable it to press the covers of the smaller cansin place. The covers are pushed Into place merely by the weight of thearm i555 and the pad I56 as the arm is released by the roller ridingdown the incline of the cam. The action of this preseer is positive andfirm so that the can covers will be forced at least part way into themouths of the cans, but its movement is so even and gradual that thereis substantially no noise and no injury caused to the cover.

After the cover has been placed upon the can, the discharge levers E iare actuated to push the can with its assembled cover off of theplatform 51 of the device. A suitable conveyer table 865 having thecustomary rollers IE6 is preferably arranged in front of the platform 57to receive the completely capped cans.

It is believed that the operation of the machine will be obvious fromthe foregoing description, but for further clarity a brief statement ofoperation is here given. As a washed can with its mouth downwardly isejected from the washer, it is moved onto the tilting table 20, The rearend of this table is then tilted downwardly which tips the upper end ofthe can rearwardly toward the cradle 2|. When the table has been tilteddownwardly substantially to its maximum lower position, the fingers I8of the cradle pick up the can, the lip of the can resting against thedetents 80. At the time the cradle engages the can, its angular positionis such as to correspond substantially to the tilted position of the canso that it is smoothly and evenly lifted from the tilting table and isrotated in a counterclockwise direction so as to invert it. As the canis rotated beyond the horizontal position, it will slide endwise untilits bottom engages the stops 83 of the cradle. When the cradle hascarried the can to a position in its rotation slightly preceding thatshown in Fig. '7, the pusher 22 will serve to push the can out of thecradle at about the time when the bottom of the can reaches the level ofthe platform 51. The edge of the can will, therefore, rest upon theplatform'5'l and be set onto the can lowering shelf 23 which hasbeen'previously raised to the position shown in Fig. 7, in whichposition its surface is at about-the same angle as that assumed by thecan,,bottom at this time. The can while resting upon the shelf will thusbe gently lowered to its upright position as it is being movedrearwardly by the pusher 22. When the can has reached the position shownin Fig. 1, the can cover hopper which has previously received a coverwill be actuated so as to move downwardly into engagement with the lipof the can at which time the ejector 9 will be actuated to discharge thecover from the hopper and push it over on top of the can. The hopper andejector will then be returned to their normal inoperative positions andthe cover presser 26 will be lowered so as to press the cover into themouth of 'the can When the cover and can have thus been assembled. thedischarge levers 24 will be actuated and the can will be pushed off ofthe platform 51 and onto the table I65.

It will be seen that since the cover hopper H6 and the cover presser 26are actuated by gravity means, the device is more or less elastic and,therefore, applicable to cans of various heights. In Fig. 10 the canshown is the maximum height for the size of machine illustrated in thedrawings. 'For intermediate and smaller sizes, the hopper would movedownwardly to meet the lip of the can and be stopped by such engagementwith the can. The upper end I39 of each ejector arm is made long enoughto engage the cover within the limits of movement of the hopper. In likemanner, the cover presser 26 has freedom of movement so that it willengage the covers of all cans within the range of the machine and willbe stopped by such engagement.

In the appended claims the term rotating as applied to the cradle is tobe interpreted as meaning that the cradle in performing its describedfunctions revolves through a complete circle.

While I have shown and described the cam shaft 39 and the cradle shaftI0 as being preferably rotated in unison, it is obvious that they may berotated in any desired suitable timed relation.

Obviously, some modifications of the details herein shown and describedmay be made without departing from the spirit of my invention or thescope of the appended claims, and I do not, therefore, wish to belimited to the exact em== bodiment herein shown and described, the formshown being merely thereof.

Having thus described my invention, what I claimisz i. The combinationwith a washing machine for cans and the like having can feeding means,of an unloading, device, comprising a single rotating cradle, a tiltingtable for feeding an inverted can into the moving cradle, and means fordis-= charging the can from the cradle and delivering it onto theplatform of the machine.

2. The combination with a washing machine for cans and the like havingcan feeding means, of an unloading device, comprising a single rotatingcradle, a tilting table for feeding an inverted can into the movingcradle, and pusher means for discharging the can from the cradle.

3. The combination with a washing machine for cans and the like havingcan feeding means, of an unloading device, comp-rising a single rotatingcan cradle, a table for feeding an inverted can into the moving cradle,pusher means for a preferred embodiment discharging the can from thecradle, and a tilting a single rotating cradle for removing the can fromthe table and rotating it to a substantially upright position, a pusherassociated with thecradle for discharging the can from the cradle, atilting can lowering shelf for receiving the can, discharge levers formoving the can all of the platform of the machine, and cam means foractuating the tilting table, pusher, can lowering shelf, and dischargelevers in timed relation with each other and with the cradle.

6. The combination with a washing machine for cans and the like havingcan feeding means, of an unloading device, comprising a single rotatingcradle, a tilting table for feeding an inverted can into the movingcradle and actuated in timed relation with the cradle, and means fordischarging the can from the cradle and delivering it onto the platformof the machine.

7. The combination with a washing machine for cans and the like havingcan feeding means, of

shelf for receiving the can on the platform of the machine and loweringit to its upright positien.

d. The combination with a washing machine for cans and the like havingcan feeding means, of an unloading device, comprising a single rotatingcan cradle, a table for feeding an inverted can into the moving cradle,pusher means for discharging the can from the cradle, a tilting shelffor receiving the can on the platform of the machine and lowering it toits upright position, and means for discharging the can from theplatform.

5. The combinatidnwith a washing machine for cans and the like havingcan feeding means, of an unloading device, comprising a tilting tablearranged adjacent the washer feeding means for tipping the bottom of theinverted can forwardly,

cradle, a tilting table for feeding an inverted can into. the movingcradle and actuated in timed relation with the cradle, and meansactuated in timed relation with the moving cradle for dis-= chargingthecan therefrom and delivering it onto\ the platform of the machine.

'8. The combination with a washingmachine for cans and the like havingcan feeding means, of an unloading device, comprising a single rotatingcradle, a. tilting table for feeding an inverted can into the movingcradle and actuated in timed relation with the cradle, and pusher meansactuated in timed relation with the cradle for discharging the cantherefrom. I 9. The combination with a washing machine for cans and thelike having can feeding means, of an unloading device comprising arotating cam shaft, a cradle shaft, means connecting said shafts so thatthey will rotate in timed relation,

cradle and delivering it onto the platform of the machine.

1d. The combination with a washing machine for cans and the like havingcan feeding means,

' of an unloading device comprising a rotating cam shaft, a cradleshaft, means connecting said shafts so that they will rotate in timedrelation, a cradle carried by said cradle shaft, a table for feeding aninverted can into the moving cradle, means for discharging the can fromthe cradle and delivering it in an upright position onto the platform ofthe machine, and cam means carried by the cam shaft for governing themovements of the tilting table and the can discharging means, wherebysaidmoving elementsare operated in timed relationship with each other.

11. The combination with a washing machine for cans and the like havingcan feeding means, of an unloading. device comprising a single rotatingcam shaft, a cradle shaft, means connectmoving elements are operated intimed relation ship with each other.

12. The combination with a washing machine for cansand thelike havingcan feeding means, 75

of an unloading device comprising a single rotating cam shaft, a cradleshaft, means connect-.

ing said shafts so that they will rotate in timed relation, a cradlecarried by said cradle shaft, a tilting table for feeding an invertedcan into the moving cradle, a pusher for discharging the can from thecradle, a tilting shelf for receiving the can onto the platform of themachine and lowering it to its upright position, and cam means carriedby the cam shaft for controlling the movement of the tilting table, thedischarge means, and the tilting shelf, whereby said moving elements areoperated in timed relationship with each other. 7

13. The combination with a washing machine for cans and the like havingcan feeding means, of an unloading device comprising a single rotatingcam shaft, a cradle shaft, means connecting said shafts so that theywill rotate in timed relation, a cradle carried by said cradle shaft, atilting table for feeding an inverted can into the moving cradle, apusher for discharging the can from the cradle, a tilting shelf forreceiving'the can on the platform of the machine and lowering it to itsupright position, means for discharging the can from the platform, andcan means carried by the cam shaft for controlling the movements of thetilting table, the pusher, the tilting shelf, and the can dischargingmeans, whereby said moving elements are operated in timed relationshipwith each other.

14. The combination with a washing machine for cans and the like havingcan feeding means, of an unloading device, comprising a single rotatingcradle having two interspaced arms, each arm being formed with an uppercan engaging portion and a lower can engaging portion, said cradle alsobeing formed with can engaging stops carried at each of the ends of eachof the arms, means for feeding an inverted can into the moving cradle,and means for discharging the can from the cradle and delivering it ontothe platform of the machine.

15. The combination with a washing machine for cans and the like havingcan and cover feeding means, of an unloading device, comprising a singlerotating can cradle, atable for feeding an inverted can into the movingcradle, means for discharging the can from the cradle and delivering itonto the platform of the machine, and cover placing means for deliveringa washed cover on to the top of the upright can.

16. The combination with a washing machine for cans and the like havingcan and cover feeding means, of an unloading device, comprising a singlerotating can cradle, a table for feeding an inverted can into the movingcradle, means for discharging the can from the cradle and deliver-, ingit onto the platform of the machine, cover placing means for deliveringa washed cover onto the top of the upright can, and cover pressing meansfor forcing such cover in place within the mouth of the can. I

17. The combination with a washing machine for cans and the like havingcan and cover feeding means, of an unloading device, comprising a singlerotating can cradle, a table for feeding an ithem upon the upright cans.

18. The combination with a washing machine for cans and the like havingcan and cover feeding means, of an unloading device, comprising a singlerotating can cradle, a table for feeding an inverted can into the movingcradle, means for discharging the can from the cradle and deliver- 5 ingit onto the platform of the machine, a pivoted cover hopper, means forfeeding covers one at a time to the hopper, discharge means for ejectingthe covers from the hopper and placing them upon the upright cans, andcover pressing means for forcing such covers in place within the mouthsof the cans.

19. The combination with a washing machine for cans and the like havingcan and cover feeding means, of an unloading device, comprising a singlerotating can cradle, a table for feeding an inverted can into the movingcradle, means for discharging the can from the cradle and delivering itonto the platform of the machine, cover placing means for delivering awashed cover onto the top of the upright can, cam means carried by thecam shaft for controlling the movement of the table, the dischargemeans, and the cover placing means, whereby said moving elements areoperated in timed relationship with each other.

20. The combination with a washing machine for cans and the like havingcan and cover feeding means, of an unloading device, comprising a singlerotating can cradle, a table for feeding an. inverted can into themoving cradle, means for discharging the can from the cradle anddelivering it .onto the platform of the machine, cover placing means fordelivering a washed cover onto the top of the inverted can, coverpressing means for forcing said cover in place within the mouth of thecan, and cam means carried by the cam shaft for controlling the movementof the table, the discharge means, the cover placing means, and thecover pressing means, whereby said moving elements are operated in timedrelation- 40 ship with each other.

I 21. The combination with a washing machine for cans and the likehaving can and cover feeding means, of an unloading device, comprising asingle rotating can cradle, a table for feeding an 45 inverted can intothe moving cradle, means for discharging the can from the cradle anddelivering it onto the platform of the machine, a pivoted cover hopper,means for feeding covers one at a time to the hopper, cover dischargemeans for ejecting the covers from the hopper and placing them upon thecans, and cam means carried by the cam shaft for controlling themovement of the table, the can discharge means, the cover hopper, thecover feeding means, and the cover discharge means, whereby said movingelements are operated in timed relationship with each other.

22. The combination with a washing machine for cans and the like havingcan and cover feeding means, of an unloading device, comprising a singlerotating can cradle, a table for feeding an inverted can into the movingcradle, means for discharging the can from the cradle and delivering itonto the platform of the machine, a pivoted cover hopper, means forfeeding covers one at a time to the hopper, cover discharge means forejecting the covers from the hopper and placing them upon the uprightcans, a cover presser for forcing the covers into place within themouths of the cans, and cam means carried by the cam shaft forcontrolling the movement of the table, the can discharge means, thecover hopper, the cover feeding means, the cover dis- 7 charge means,and the cover riresser, whereby said moving elements are operated intimed relationship with each other.

23. The combination with a washing machine for cans and the like, of anunloading device comprising a single rotating can cradle, means forconstantly rotating said cradle through a complete circle, means forfeeding an inverted can into the cradle, and means for discharging thecan from the cradle.

24. The combination with a washing machine for cans and the like, of anunloading device comprising a positively actuated rotating can cradlehaving a single can engaging -surface, means for rotating said cradlethrough a complete circle, means for feeding an inverted can into thecradle, and means for discharging the can from the cradle.

25. The combination with a washing machine for cans and the like havingcan feeding means, of an unloading device, comprising a positivelyactuated rotating cradle having a single can engaging surface, means forrotating said cradle through a complete circle, means for feeding aninverted can into the moving cradle, and means for discharging the canfrom the moving cradle and delivering it onto the platform of themachine.

26. The combination with a washing machine for cans and the like, of anunloading device,

comprising a positively actuated rotating can cradle having a single canengaging support, means for rotating said cradle through a completecircle, means for feeding an inverted can into the cradle, means movablein a path which is parallel to the plane of rotation of the cradle fordischarging the can from the cradle, and cover placing means fordelivering a washed cover onto the top of the upright can.

27. The combination with a washing machine for cans and the like, of anunloading device, comprising a positively actuated rotating can cradlehaving a single can engaging support, means for rotating said cradlethrough a complete circle, means for feeding an inverted can

